The 501st Legion, also known as the 501st Battalion, was an elite military division of the Grand Army of the Republic. Consisting of highly-trained clone troopers engineered by Kaminoan cloners, the 501st served under the command of the Jedi Knight Anakin Skywalker throughout the Clone Wars. It was deployed to numerous contested planets across the galaxy during the conflict between the Galactic Republic and the Confederacy of Independent Systems.